| 摘要 |
PURPOSE: A high power micro speaker is provided to obtain an oscillation area by attaching a voice coil to a lower portion of a vibration plate or a center dome located on the top of a damper plate. CONSTITUTION: A micro speaker(1) has a damper plate(20) formed between a vibration plate(90) and a cover plate(63). The damper plate has an opening portion or a bridge to have predetermined elastic force. The damper plate stably supports the vibration of the vibration plate. A connection terminal applies an external electrical control signal to a projection(13) of the damper plate. The micro speaker comprises the vibration plate, the damper plate, and a vibration module combined with a voice coil(30). |
